CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Rockwall County zip codes than in any other category.
The following table shows how many retail trade businesses with between one and four employees were in Rockwall County zip codes during the period from 2012 to 2016.
Retail trade businesses with between one and four employees in Rockwall County (2012-2016)
Year
Total businesses
2012
101
2013
106
2014
105
2015
103
2016
101
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